Abstract: In a computer controller for fuel dispensing including a base member, a pulser member supported by the base member and capable of detecting the various increments of fuel quantity being dispensed in addition to deductions therefrom, the signals from the pulser being transmitted to a computer, the computer processing the signals for delivery to a display assembly, and disclosure of the processed information upon liquid crystal displays readily available for view by the customer; a junction box mounted upon the base member, the junction box being completely sealed for exhibiting explosion proof attributes to prevent ignition from sparking of the associated electrical wires or thermal heating of associated electrical components, contained therein and precluding an incident ignition of the external ambient fuel vapors, a computer housing mounted upon the junction box and incorporating the various intrinsically safe circuit boards comprising the computer, and the display assemblies either connecting upon the compu

Abstract: A hoisting system for use in elevating personnel or other materials preferably within a mine, or other low level installations, incorporating a capsule which is suspended by a singular cable that is fed out from a winding drum, a tension weight suspended below and in alignment with the capsule, being supported by the same cable, and a jib-crane assembly located at the upper reaches of the hoisting assembly to provide for feed out of the cable through its sheave assembly to furnish, at least initially, a lowering of the tension weight to its lowermost extent for coming to rest upon a base, while thereafter the continued unwinding or rewinding of the cable provides respectively for the lowering or raising of the capsule between various levels for effecting transfer of personnel and materials along the shaft heighth.